Bring a large pot of well-salted water to a boil over high heat. Set up a large bowl of well-salted ice water for shocking.
Add the beans to the boiling water and cook until tender, approximately 5 to 6 minutes. Strain and immediately transfer the beans to the salted ice water. When cool, strain again and set aside.
Add the olive oil to a large pan. Add the garlic and crushed red pepper, and cook over medium-high heat for 1 minute, until the garlic begins to blister and become golden. Remove the garlic and set aside.
Add the beans to the pan and saute until hot and just beginning to blister.
Transfer the beans to a serving bowl, season with salt and serve with the marmalade vinaigrette.